Sensing Architectures

With the modulo ADC hardware, we can have systems based on it to deal with different applications.

Multi-Channel

A Dual-Channel MADC is developed for Sub-Nyquist Frequency Estimation. The \(\lambda\) is selected by …. The detail of this system can be refered to …..

More details could be found in application …

Event-Driven

Event-driven sampling systems, when integrated with hardware like modulo ADC, offer a robust solution for handling high dynamic range signals in energy-efficient applications. Traditional EDS hardware struggles with limited dynamic range , where input signals surpassing a threshold :math:lambda result in saturation or null outputs, leading to data loss. The MADC hardware mitigates this issue through a modulo non-linearity mechanism that folds high-amplitude signals into a manageable range, preventing saturation and maintaining DR within the ADC’s capacity. The Modulo Event-Driven Sampling architecture further enhances this by incorporating a modulo-hysteresis mechanism paired with an asynchronous sigma-delta modulator. This combination ensures accurate encoding and reconstruction of signals while maintaining low power consumption. Effective system identification is crucial for MEDS hardware, enabling precise signal recovery even in the face of hardware variations, as confirmed by experimental implementations.